This book focuses on interference reduction technique used in LTE-A network. It provides the best solution to identify a specific network blockage and interference. The demand for high data rates is increasing day by day. The user needs to access all the multimedia applications on his/her mobile phone at anytime and anywhere. For this purpose the LTE was launched. The LTE provides high data rates and better efficiency to the network, but at the same time the LTE-A is affected by interference in down-link, especially at the cell edge. The degradation of connectivity occurs due to inter-cell interference, which occurs when user is receiving the signals from two neighboring base stations at the same frequency.